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83786233 is a prime number
BaseRepresentation
bin1001111111001…
…11100111111001
312211122210002211
410333213213321
5132422124413
612151455121
72035112506
oct477474771
9184583084
1083786233
1143327923
12240874a1
131448786b
14b1b04ad
15755083d
hex4fe79f9

83786233 has 2 divisors, whose sum is σ = 83786234. Its totient is φ = 83786232.

The previous prime is 83786203. The next prime is 83786239. The reversal of 83786233 is 33268738.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83411689 + 374544 = 9133^2 + 612^2 .

It is a cyclic number.

It is not a de Polignac number, because 83786233 - 213 = 83778041 is a prime.

It is a super-3 number, since 3×837862333 (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (83786239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41893116 + 41893117.

It is an arithmetic number, because the mean of its divisors is an integer number (41893117).

Almost surely, 283786233 is an apocalyptic number.

It is an amenable number.

83786233 is a deficient number, since it is larger than the sum of its proper divisors (1).

83786233 is an equidigital number, since it uses as much as digits as its factorization.

83786233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 83786233 is about 9153.4820150585. The cubic root of 83786233 is about 437.5800917859.

The spelling of 83786233 in words is "eighty-three million, seven hundred eighty-six thousand, two hundred thirty-three".